Code No. B1142 ESL authentification error
Code No. B1151 OSS authentification timeout(ESL)


If the electric steering lock receives any abnormal data from OSS-ECU as a result of the certification communication with electric steering lock, OSS-ECU sets the diagnosis codes No.B1142 and No.B1151. At the same time, OSS-ECU displays the immobilizer certification system inspection warning screen to the multi information display of the combination meter.


Check Conditions
Judgment Criterion



STEP 1. After turning the forced power supply output to "IG-ON" using the M.U.T.-III, check if the diagnosis code No.B1161 is set.

Q. Is the diagnosis code set?

Carry out the troubleshooting for the diagnosis code No.B1161. Refer to .
Go to Step 2.

STEP 2. After performing the locking and unlocking operations of the electric steering lock, recheck the diagnosis code.

Q. Is the diagnosis code set?

Replace the electric steering lock and register the chassis number (Refer to ).
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).